Internal-combustion engine.



W. G. CARTER.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED MAR.20.1911,

1,O i0 ,5O8D Patented Oct. 8, 1912.

proper position it is locked by means of a spring-actuated pawl 7 thatcooperates with notches 8 on the top portion 3 of the valve cage. Anyother suitable means may be used for locking the valve cage in adjustedposition,-however, and while I have herein shown the cage as beingprovided with a screw-threaded portion 3 that is screwed into thecylinder, it would, of course, be

possible to connect the cage to the cylinder in various other ways.Therefore, I do not wish it to be understood that my invention islimited to the exactconstruction herein shown for my broad idea consistsin a valve cage secured at its outer end to the cylinder and provided atits inner end with a por- 'tion; which can move freely in the openingprovided for same in'the inner Wall of the cylinder when the metal. fromwhich the cage is formed expands and contracts, and a suitable packingarranged between this portion and the cylinder so as to insure atightjoint between said parts at all times.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. An internal combustion engine having a cylinder provided in one ofits walls with an opening of uniform diameter throughout its entirelength, a valve cage for an in- I *tvardly opening valve having aportion that arranged in the cylinder and connected at its outer end tothe cylinder, an inwardly opening valve seated in said cage, said cagebeing provided at its inner end with a portion which fits freely in theopening in the inner wall of the cylinder, and an expansible packingarranged between the periph eral edge of said portion and the edge ofthe opening in which said portion is arranged so as to provide for theexpansion and contraction of the cage.

3. In an internal combustion engine, a cylinder, a valve cage providedat its inner end with a portion which fits freely in an opening in thecylinder, an expansible packthe cylinder in which. said portion isarranged so as to provide for the expansion and contraction of the cage,and an inwardly opening valve mounted in said cage.

4. In an internal combustion engine, a cylinder a valve cage provided atits inner end with a sleeve portion which fits freely in an opening inthe cylinder, an expansible packing arranged between the peripheral edgeof said sleeve portion and the edge of the opening in the cylinder inwhich said portion is arranged so as to provide for the expansion andcontraction of the cage, and an inwardly opening valve seated in saidsleeve portion.

5. In an internal combustion engine, a cylinder, a valve cage providedat its inner end with a sleeve portion which fits freely in an openingin the cylinder, an expansible' packing arranged between the peripheraledge of said sleeve portion and the edge of the opening in the cylinderin which said portion is arranged so as to provide for the expansion andcontraction of the cage, an

inwardly opening valve seated in said sleeveportion, a stem on saidvalve, and a guide on said cage through which said stem passes.

6. In an internal combustion engine, a cylinder, an inwardly openingvalve provided with a stem, an operating mechanism that cooperates withsaid stem, a cage for said valve adjustably mounted in said cylinderinsuch a manner that it can be moved inwardly and outwardly so as tovary the said valve stem with relation to position of said operatingmechanism, a sleeve portion at the inner end of said cage which fitsfreely in an opening provided for same in the cylinder, and anexpansible packing .arranged between the peripheral edge of saidsleeve'portion and the edge of the opening in the cylinder in which saidportion is arranged so as to provide for the expansion and contractionof the cage.

In testimony whereof I hereunto afiix my signature in the presence oftwo witnesses, this eighteenth day of March, 1911.

WILLIAM C. CARTER.

VVltnessesz i I I \VELLs L. CHURCH, GEORGE BAKEWELL.

